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Condition: Hemorrhagic Stroke
Nutrition: Iron

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Total 103 results found since Jan 2013.

Deferoxamine Prevents Post-Stroke Memory Impairment in Female Diabetic Rats: Potential Links to Hemorrhagic Transformation and Ferroptosis
Am J Physiol Heart Circ Physiol. 2022 Dec 23. doi: 10.1152/ajpheart.00490.2022. Online ahead of print.ABSTRACTDiabetes increases the risk of post-stroke cognitive impairment (PSCI). Greater hemorrhagic transformation (HT) after stroke is associated with vasoregression and cognitive decline in male diabetic rats. Iron chelator deferoxamine (DFX) prevents vasoregression and improves outcomes. While diabetic female rats develop greater HT, its impact on post-stroke cerebrovascularization and cognitive outcomes remained unknown. We hypothesized that diabetes mediates pathological neovascularization, and DFX attenuates post-str...
Source: American Journal of Physiology. Heart and Circulatory Physiology - December 23, 2022 Category: Physiology Authors: Weiguo Li Yasir Abdul Raghavendar Chandran Sarah Jamil Rebecca A Ward Mohammed Abdelsaid Guangkuo Dong Susan C Fagan Adviye Ergul Source Type: research

Role of lipocalin 2 in stroke
Neurobiol Dis. 2023 Feb 16:106044. doi: 10.1016/j.nbd.2023.106044. Online ahead of print.ABSTRACTStroke is the second leading cause of death worldwide; however, the treatment choices available to neurologists are limited in clinical practice. Lipocalin 2 (LCN2) is a secreted protein, belonging to the lipocalin superfamily, with multiple biological functions in mediating innate immune response, inflammatory response, iron-homeostasis, cell migration and differentiation, energy metabolism, and other processes in the body. LCN2 is expressed at low levels in the brain under normal physiological conditions, but its expression i...
Source: Neurobiology of Disease - February 22, 2023 Category: Neurology Authors: Ruo-Yu Zhao Peng-Ju Wei Xin Sun Dian-Hui Zhang Qian-Yan He Jie Liu Jun-Lei Chang Yi Yang Zhen-Ni Guo Source Type: research

Inhibition of Toll-Like Receptor-4 (TLR-4) Improves Neurobehavioral Outcomes After Acute Ischemic Stroke in Diabetic Rats: Possible Role of Vascular Endothelial TLR-4
In conclusion, TLR-4 is highly upregulated in the microvasculature and that beneficial effects of TLR-4 inhibition are more profound in diabetes. This suggests that inhibition of vascular TLR-4 may provide therapeutic benefits for stroke recovery in diabetes.
Source: Molecular Neurobiology - February 27, 2019 Category: Neurology Source Type: research

Iron Measured in Nasal Exudate Samples as a New and Useful Biomarker in the Differential Diagnosis of Patients with Acute Stroke
Conclusions: Our findings suggest that iron levels in nasal exudate may be useful in the acute stage for the differential diagnosis between ischemic and hemorrhagic damage in acute stroke patients. They also open a potential field to study other biomarkers in nasal exudate in several neurological disorders. Clinical studies must be performed to confirm our results.Cerebrovasc Dis
Source: Cerebrovascular Diseases - November 20, 2020 Category: Neurology Source Type: research

Regulation of the p53 ‑mediated ferroptosis signaling pathway in cerebral ischemia stroke (Review)
Exp Ther Med. 2023 Jan 26;25(3):113. doi: 10.3892/etm.2023.11812. eCollection 2023 Mar.ABSTRACTStroke is one of the most threatening diseases worldwide, particularly in countries with larger populations; it is associated with high morbidity, mortality and disability rates. As a result, extensive research efforts are being made to address these issues. Stroke can include either hemorrhagic stroke (blood vessel ruptures) or ischemic stroke (blockage of an artery). Whilst the incidence of stroke is higher in the elderly population (≥65), it is also increasing in the younger population. Ischemic stroke accounts for ~85% of a...
Source: Experimental and Therapeutic Medicine - February 16, 2023 Category: General Medicine Authors: Shuangli Xu Xuewei Li Yanqiang Wang Source Type: research

Rationale and Current Evidence for Testing Iron Chelators for Treating Stroke
AbstractPurpose of ReviewTo discuss the mechanisms of iron regulation in the brain and the pathophysiological role of deregulation of iron homeostasis following a stroke, and to review existing evidence supporting the potential role of iron chelators in the treatment of ischemic and hemorrhagic stroke.Recent FindingsIn recent years, accumulating evidence has highlighted the role of neuroinflammation in neurological injury after ischemic and hemorrhagic stroke, and that free iron is central to this process. Via the Fenton reaction, free iron catalyzes the conversion of superoxide ion and hydrogen peroxide into hydroxyl radi...
Source: Current Cardiology Reports - March 3, 2019 Category: Cardiology Source Type: research

Iron nanoparticle contrast enhanced microwave imaging for emergent stroke: A pilot study
Publication date: Available online 1 November 2018Source: Journal of Clinical NeuroscienceAuthor(s): Joseph S. Hudson, Timothy K. Chung, Benjamin S. Prout, Yasunori Nagahama, Madhavan L. Raghavan, David M. HasanAbstractEmergent stroke is mostly evaluated using hospital based imaging. Quick imaging allows for rapid administration of IV thrombolysis and outcome improvement. Microwave imaging (MI) is an emerging portable imaging modality. Iron oxide nanoparticles are known to interact with microwave frequency electromagnetic radiation. In this manuscript, we provide proof of concept for a novel iron oxide nanoparticle enhance...
Source: Journal of Clinical Neuroscience - November 2, 2018 Category: Neuroscience Source Type: research

The role and therapeutic potential of heat shock proteins in haemorrhagic stroke.
Abstract Heat shock proteins (HSPs) are induced after haemorrhagic stroke, which includes subarachnoid haemorrhage (SAH) and intracerebral haemorrhage (ICH). Most of these proteins function as neuroprotective molecules to protect cerebral neurons from haemorrhagic stroke and as markers to indicate cellular stress or damage. The most widely studied HSPs in SAH are HSP70, haeme oxygenase-1 (HO-1), HSP20 and HSP27. The subsequent pathophysiological changes following SAH can be divided into two stages: early brain injury and delayed cerebral ischaemia, both of which determine the outcome for patients. Because the mech...
Source: J Cell Mol Med - July 4, 2019 Category: Molecular Biology Authors: Shao A, Zhou Y, Yao Y, Zhang W, Zhang J, Deng Y Tags: J Cell Mol Med Source Type: research

Hemoglobin metabolism by-products are associated with an inflammatory response in patients with hemorrhagic stroke
Conclusion: Iron and heme are associated with a pro-inflammatory response in the central nervous system following hemorrhagic stroke, and protections against hemoglobin and heme are lacking within the human brain. Patient inflammatory profiles were associated with a poorer prognosis, and local anti-inflammatory responses appeared to have a protective role.
Source: Revista Brasileira de Terapia Intensiva - May 7, 2018 Category: Intensive Care Source Type: research

B-po03-151 left atrial appendage occlusion as alternative approach for stroke prevention in hereditary hemorrhagic telangiectasia patients with atrial fibrillation
In this study, we evaluate the safety and efficacy of left atrial appendage occlusion (LAAO) for stroke prevention in HHT.
Source: Heart Rhythm - July 28, 2021 Category: Cardiology Authors: Mohammed Alghammass, Jad Aldanaf, Elizabeth Dranow, Kevin Whitehead Source Type: research

Associations of Anemia With Outcomes in Patients With Spontaneous Intracerebral Hemorrhage: A Meta-Analysis
Conclusions: Anemia on admission was associated with higher mortality and an increased risk of poor outcome in patients with ICH. However, the results were limited by the high heterogeneity of included studies. Prospective, multi-center or population-based, large sample cohort studies are needed in the future. Introduction Intracerebral hemorrhage (ICH) is the second most common cause of stroke and a highly lethal disease (1), which still lacks effective therapeutic interventions (2, 3). Although age, baseline ICH volume and neurological status on admission are well-known predictors of outcome of ICH (4), none of t...
Source: Frontiers in Neurology - April 24, 2019 Category: Neurology Source Type: research

Cerebrovascular Complications of Anemia
AbstractPurpose of the ReviewAnemia has been called the fifth cardiovascular risk factor. It is one of the most prevalent pathologies worldwide. In this article, we aimed to perform a narrative review of the main cerebrovascular complications of anemia and its influence on stroke prognosis.Recent FindingsBoth hypoproliferative anemia (thalassemia, iron deficiency anemia, etc.) and hyperproliferative anemia (sickle cell disease, paroxysmal nocturnal hemoglobinuria, hereditary spherocytosis, etc.) are associated to cerebrovascular disease ranging from transient ischemic attack to ischemic stroke and hemorrhagic stroke with b...
Source: Current Neurology and Neuroscience Reports - September 3, 2021 Category: Neuroscience Source Type: research